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A mixture of sodium oxide, Na2O, and barium oxide,BaO, that weighted 5.00g was dissolved in water. The resulting solution was treated with excess dilute sulfuric acid, H2SO4. Sulfuric acid converted the oxides to sulfates and barium sulfate precipitated from the solution. Sodium sulfate is soluble and remained in the solution.
The precipitate was filtered, dried and found to weigh 3.43g.
What percentage of the original sample was sodium oxide.
A mixture of sodium oxide, Na2O, and barium oxide,BaO, that weighted 5.00g was dissolved in water. The resulting solution was treated with excess dilute sulfuric acid, H2SO4. Sulfuric acid converted the oxides to sulfates and barium sulfate precipitated from the solution. Sodium sulfate is soluble and remained in the solution.
The precipitate was filtered, dried and found to weigh 3.43g.
What percentage of the original sample was sodium oxide.
Last edited by User000; 1 month ago
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(Original post by GabiAbi84)
What have done with it so far?
What have done with it so far?
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(Original post by Davies Chemistry)
See flow chart attached to help you
See flow chart attached to help you
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(Original post by Davies Chemistry)
See flow chart attached to help you
See flow chart attached to help you
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#7
(Original post by User000)
It says the answer is 55% but I keep getting 30%
It says the answer is 55% but I keep getting 30%
The answer is definitely 55%
Last edited by GabiAbi84; 1 month ago
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#9
Your first calculation should end with 0.01469
Then the next one will be 2.25287
You need to make sure you keep more sig figures during your calculations.
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(Original post by GabiAbi84)
You have rounded too early.
Your first calculation should end with 0.01469
Then the next one will be 2.25287
You need to make sure you keep more sig figures during your calculations.
You have rounded too early.
Your first calculation should end with 0.01469
Then the next one will be 2.25287
You need to make sure you keep more sig figures during your calculations.
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reply
Report
#11
(Original post by User000)
Thank you so much 😃
Thank you so much 😃
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